Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1988

Severe Thunderstorm Warning 10, NWS Twin Cities, MN

May 7, 1988Dunn County, Pepin County, Pierce County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at May 7, 1988, 7:20 PM CDT for Dunn County, Pepin County, Pierce County, Wisconsin. It was in force for 40 min.

The area

The counties it named.

The facts

Issued
May 7, 1988, 7:20 PM CDT (00:20 UTC)
Expired
May 7, 1988, 8:00 PM CDT
In force
40 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Dunn County, WI, Pepin County, WI, Pierce County, WI

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Minneapolis, MN (KSTC), launched 00:00Z, 0.3 hours before the alert went out and 115 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 1988-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 910 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 1988-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 236 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
910 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
1889 m above ground
0-6 km bulk shear
80 kt
0-1 km storm-relative helicity
236 m²/s²
0-3 km storm-relative helicity
232 m²/s²
Significant tornado parameter
0.2
Supercell composite
12.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KMSP 080021
SVRMSP
WIC033-091-093-080100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
720 PM CDT  MAY 7 1988
 
THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  800 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN WEST CENTRAL WISCONSIN
          ...SOUTHERN DUNN...WESTERN PEPIN...EASTERN PIERCE
 
AT 720 PM...SEVERE THUNDERSTORMS WERE LOCATED FROM NEAR BAY CITY
SOUTHEAST TO NEAR PEPIN...ABOUT 50 MILES SOUTHEAST OF DOWNTOWN ST
PAUL. MOVEMENT WAS TO THE NORTH AT 50 MILES AN HOUR. CITIES INCLUDED
IN THIS WARNING ARE ELLSWORTH...MENOMENIE...AND DURAND.
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
WILLIS

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, May 7, 4:39 PM CDT, 2 hours 41 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
430 PM CDT SAT MAY 7 1988

...TORNADO WATCH FOR WESTERN MINNESOTA IN EFFECT UNTIL 700 PM CDT...

AT 430 PM...THUNDERSTORMS...SOME WITH HEAVY RAIN...WERE DEVELOPING
RAPIDLY OVER WIDELY SCATTERED SECTIONS OF THE SOUTHWEST HALF OF
MINNESOTA.  THEY WERE MAINLY LOCATED TO THE SOUTH OF A LINE FROM
FARGO TO DETROIT LAKES TO MINNEAPOLIS TO LA CROSSE.  THE STRONGEST
THUNDERSTORMS WERE OVER WEST CENTRAL AND NORTHWEST MINNESOTA...IN
THE FARGO...ALEXANDRIA VICINITY.  SOME OF THESE STORMS MAY PRODUCE
LARGE HAIL...DAMAGING WINDS...DANGEROUS LIGHTNING...AND VERY HEAVY
RAINFALL.

MOVEMENT OF THE THUNDERSTORMS WAS TO THE NORTH AT 30 MILES AN HOUR.
PERSONS IN WESTERN MINNESOTA SHOULD CONTINUE TO LISTEN FOR FURTHER
STATEMENTS AND WARNINGS...AND BE PREPARED TO SEEK SAFE SHELTER IF
THREATENING WEATHER APPROACHES.
KRAFT
Special weather statement, May 7, 4:50 PM CDT, 2 hours 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MN
445 PM CDT SAT MAY 7 1988

...TORNADO WATCH UNTIL 7PM IN WESTERN MINNESOTA...
...THUNDERSTORMS FORMING IN CENTRAL MINNESOTA...

AT 445 PM CDT THUNDERSTORMS WERE FORMING IN CENTRAL MINNESOTA ALONG A
LINE FROM LITTLE FALLS TO ST. CLOUD AND SOUTH TOWARDS LITCHFIELD. NO
SEVERE WEATHER HAS BEEN REPORTED WITH ANY THESE STORMS...HOWEVER THEY
WERE STILL IN THE EARLY STAGES OF DEVELOPMENT AND MAY YET PRODUCE
HAIL...HEAVY RAIN AND STRONG...POSSIBLY DAMAGING WINDS.

MAKE PLANS NOW...AND BE READY TO MOVE QUICKLY TO A PLACE WHERE YOU
WILL BE SAFE IF THESE STORMS SHOULD BECOME SEVERE.

WDV
Special weather statement, May 7, 5:42 PM CDT, 1 hour 38 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MN
542 PM CDT SAT MAY 7 1988

...TORNADO WATCH UNTIL 11PM IN CENTRAL MINNESOTA...
...SEVERE THUNDERSTORM WARNING FOR STEARNS...BENTON AND SHERBURNE
COUNITES OF CENTRAL MINNESOTA...

AT 540 PM CDT A SEVERE THUNDERSTORM WAS LOCATED IN CENTRAL MINNESOTA
JUST EAST OF ST. CLOUD...NEAR THE CITY OF FOLEY. BREIF HEAVY
RAIN...HAIL...AND STRONG WINDS WERE ACCOMPANYING THIS STORM AS IT
MOVED NORTH SAT 30 MPH.

BETWEEN 515 AND 530 PM 1/2 INCH HAIL FELL AT ST. JOSEPH...5 MILES
WEST OF ST. CLOUD...AND AT THE ST. CLOUD WEATHER SERVICE OFFICE.

WDV
Special weather statement, May 7, 5:49 PM CDT, 1 hour 31 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
545 PM CDT SAT MAY 7 1988

...TORNADO WATCH FOR CENTRAL AND WESTERN MINNESOTA IN
   EFFECT UNTIL 1100 PM...

AT 430 PM...THUNDERSTORMS WITH VERY HEAVY RAIN HAD DEVELOPED RAPIDLY
OVER MUCH OF THE SOUTHWEST HALF OF MINNESOTA.  THEY WERE MAINLY LOCATED
TO THE SOUTH OF A LINE FROM FARGO TO PARK RAPIDS TO MILLE LACS LAKE
TO MINNEAPOLIS TO LA CROSSE.  THE STRONGEST OF THESE WERE NEAR ST CLOUD
AND ALBERT LEA.  THESE STORMS MAY PRODUCE LARGE HAIL...DAMAGING WINDS...
DANGEROUS LIGHTNING...AND VERY HEAVY RAINFALL.

MOVEMENT OF THE THUNDERSTORMS WAS TO THE NORTH AT 40 TO 50 MILES AN HOUR.
PERSONS ENGAGED IN OU]TDOOR ACTIVITIES ESPECIALLY SHOULD CONTINUE TO
LISTEN FOR FURTHER STATEMENTS AND WARNINGS.  BE PREPARED TO SEEK SAFE
SHELTER IMMEDIATELY IF THREATENING WEATHER APPROACHES.
KRAFT
Special weather statement, May 7, 5:50 PM CDT, 1 hour 30 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE MINNEAPOLIS/ST PAUL MN
545 PM CDT SAT MAY 7 1988

...TORNADO WATCH FOR CENTRAL AND WESTERN MINNESOTA IN
   EFFECT UNTIL 1100 PM...

AT 530 PM...THUNDERSTORMS WITH VERY HEAVY RAIN HAD DEVELOPED RAPIDLY
OVER MUCH OF THE SOUTHWEST HALF OF MINNESOTA.  THEY WERE MAINLY LOCATED
TO THE SOUTH OF A LINE FROM FARGO TO PARK RAPIDS TO MILLE LACS LAKE
TO MINNEAPOLIS TO LA CROSSE.  THE STRONGEST OF THESE WERE NEAR ST CLOUD
AND ALBERT LEA.  THESE STORMS MAY PRODUCE LARGE HAIL...DAMAGING WINDS...
DANGEROUS LIGHTNING...AND VERY HEAVY RAINFALL.

MOVEMENT OF THE THUNDERSTORMS WAS TO THE NORTH AT 40 TO 50 MILES AN HOUR.
PERSONS ENGAGED I^N OUTDOOR ACTIVITIES ESPECIALLY SHOULD CONTINUE TO
LISTEN FOR FURTHER STATEMENTS AND WARNINGS.  BE PREPARED TO SEEK SAFE
SHELTER IMMEDIATELY IF THREATENING WEATHER APPROACHES.
KRAFT

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 8, 3:49 PM CDTSevere Thunderstorm WarningMPXClark56 min
May 8, 4:43 PM CDTSevere Thunderstorm WarningMPXClark62 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1988Every severe thunderstorm warning in 1988

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.